In 1870, the era was known as the Gilded Age. During this age, most people moved from farming areas to the city to live. Consequently, there was an increasing number of manufacturing jobs. Therefore, your answer is the last option (D), factory workers.
In 1870, the time was known as the Gilded Age. Amid this age, a great many people moved from cultivating zones to the city to live. Thusly, there was an expanding number of assembling jobs.Manufactured lodging (ordinarily known as manufactured homes in the United States) is a sort of pre-assembled lodging that is to a great extent gathered in production lines and after that moved to destinations of utilization.
With ideal climate and available land, property owners in the southern colonies began establishing plantation farms for cash crops like rice, tobacco and sugar cane—enterprises that required increasing amounts of labor.